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提出了一种基于分类法和主题词表的科技文献知识导航体系,该体系支持分类法和主题词表知识导航、元数据结构查询和全文检索这三种检索手段以及他们的混合应用。从分类法主题词表的概念浏览和元数据查询的语义支持的角度来说,这是一个支持概念检索的知识导航体系。根据该体系,实现了“北京大学科技文献检索系统”实验数字图书馆。
This paper proposes a scientific knowledge navigation system based on taxonomy and thesauri, which supports three search methods of taxonomy and thesauri knowledge navigation, metadata structure query and full-text search and their hybrid applications. This is a knowledge navigation system that supports concept retrieval, from the perspective of the conceptual browsing of taxonomy thesaurus and the semantic support of metadata queries. According to the system, the “Peking University Science and Technology Literature Retrieval System” experimental digital library was realized.